Exercising apparatus.



NoL 850,938.

A J. H. KBLLOGG.

EXERCISING APPARATUS.

APPLICATION FILED NOV.16, 1905.

WitlQQSSQSI PATENTED APR. 23, 1907 NITED srATEs Pn Enron. 7

JOHN HARVEY KELLQGG, OFVBA'TTLE CREEK, MICHIGAN.

EXERQBSENG Specification of Letters Patent.

APPARATUS.-

Patented April 23, 1907.

Application filed November 16,1905. Serial Nb. 287,667.

To dill whom it may concern:

Be it known that '1, JOHN HARVEY KEL 'LOGG, a citizen of the UnitedStates, residing atIthe city ofv Battle Creek, county of Calhoun, Stateof Michigan, have invented certain new and useful Improvements inExercising Apparatus, of which the following is a specification.

, geous for other uses. v I

This inventionrelates to'improv'ements in exercising'apparatus. i

"It relates articularly to an im roved dumb-bell, alt ough adapted andadvanta- The main object of this invention is'to pro-' vide an improveddumb-bell adapted to vibrate when in use.

I j fromthe detailed description to follow.

Further objects and objects relating to de tails of constructionwillydefinitely appear I accomplishthe' objects of. my invention by thedevices andmeans describedin the following specification. l

The invention is clearly defined, and'pointed out in the claims.

-. A structure embodying the'features (if my invention'is clearlyillustrated inthe accompa ying drawings, forming a part of. thisspecificatiomin which .1.

' ure 1 is a side elevatlon of my improved i F1 dumb-bell, partially inlongitudinal section,- to show the structural dtai s; andEigrQ'i's atransverse section taken on a line corres 0nding to line 2-2 of Fig.1,thepadding'f 'eing omitted, showing the structural details.

In the drawings similar letters of reference refer to similar partsthroughout the several Referring tothe drawings, A is an electricmotorinclosed in a. suitable casin yforming one of the dumb-bell balls.'A'ho low ban;

dle or gri Bis secured to the motor-casin This han le preferablyconsists. of a tube i of metal, having a suitable covering b prefer belably padded, as illustrated. The other dumb- I O, which is threadedupon'the end of the tube.

' b. A plate, as 0, having an inwardly pro' jecting annular threadedflange c, 1s thread-L all y padded covering b "is secured oven-these edinto the outer end of the core'C. I About the core 0 is a wood ring orcovering" CE.

h red upon the core byscreWs, as arranged through; the plate c; 1 Theparts, preferably b tacking to the'innei: endof the wood ri ,asillustrated. Within the core C is a caring for one end of the;

allpreferably consistsof 'a metal core shaftDl This shaft is preferablymade up of sections secured together by, a slip-j oint D for conveniencein assembling the structure. A weight E5 is arranged upon the shaft D ina mannertothrow the same out of balance, so 'that when the shaft isrotated by the motor the dumb-bell is vibrated. This I find to be averyeffective exercising device,

as the muscles in addition to the benefitof movement secured by the useof the dumbbell are vibrateddn a very effective manner.

-This is particularly effective, as by using the dumbbell in the-regularWay there is a con- .stant change of the osition of the muscles, andthey are vibrate at the same time.

'1 preferably pad the dumb-bell ball as described, so that'it may beused in administering movement cure or massage treat ments by applyingthe same to the arts to 'be treated. This couldbedoneif t e same werenot padded; but it would not-be as satisfactory.

I have illustrated and describedmy'imroved dumb-bell in detail in theform preerred by-me on account of its structural Iam' ' of a chamberedcore of metal threaded upon said handle, 'a late having an annularthreaded flanget eaded into the outer end of said core, a ring of woodarranged on saidcore and secured thereto by screws arranged through saidplate, and a padded covering; a'

shaft hected bya s'li oint; a bearin for one secor said motor made up ofsections contionof saidsha t arranged in'sai core; and a weight inclosed by'said core arrangedon said shaft to throw the same out of balance,for

the purpose specified.

b-;b ll .comprising an electric metori inclosed i'in a casing formingone of the =-durnb-bell"balls'; a hollow, handle or grip secured-tosaidmotor casing; a ball consisting of a-eharnhered core of metal threadedupon .said handlaiuand a covering-"for said core; a

nected by a slip-joint; a bearing for one see- I p I I0 shaft for saidmotor made up of sectlons contion of said-shaft arranged insaid core;and a weight inclosed by said core arranged on said shaft to throw thesame out of. balance, for

the purpose specified.

3. A dumb-bell comprising an electric mo tor inclosed in a casingforming one of the dumb-bell-balls; a' hollow handle or gripsecured tosaid motor-casing a chambered ball threaded u on said handle; a shaftfor said motor ma e up of sections connected by a slip-joint; a bearingfor one section of said shaft arranged in said chambered ball; andaweight inclosed by said chambered ball arranged on said shaft to throwthe same out of balance, for the urpose specified.

4. A dumb-be l comprising'an electric mo- -tor inclosed in a casingforming one of the dumb-bell balls; a padded ball having a chambertherein; a hollowhandle or grip connecting said motor-casing to" saidchambered ball; a shaft for-said motor arranged through said handle; abearing for said shaft arranged in said chambered ball; and a weightinclosed by said chambered ball ar ranged on said shaft to throw thesame out of balance, for the purpose specified; y

5. A dumb-bell comprising an; electric motor inclosed in a casingforming one of the dumb-bell balls a ball having a chamber therein; ahollow handleor gri connecting said motor-casing to said cham ered ball;a

shaft for said motor arranged through said handle; a bearing for saidshaft arranged in saidchambered ball; and a weight inclosed by saidchambered ball arranged' on said shaft to throw the same out of balance,for

the purpose specified.

6. A dumb-bell comprising an electric m0- tor inclosed in a casingforming one of the dumb-bell balls a padded ball; a handle or gripconnecting said motor-casing thereto; a shaft for said motor; and aweight arranged on said shaft tothrow the same out of balance, for thepurpose s ecified.

\ 7. Adumb-be comprising an electric motor inclosed in a casing, formingone of the dumb-bell balls; a companion ball therefor; a handle or'gripconnecting said motor-casing to said companion ball; a shaft for saidmo--

